TY  - BOOK
AU  - World Health Organization
TI  - Natural family planning: guide to provision of services
SN  - 92-4-154241-1
U1  - 613.888 
PY  - 1988///
CY  - Geneva
PB  - World Health Oraganization
KW  - WHO
KW  - Personal health and hygiene
N1  - Gift; WHO, personal health, hygiene, global standards
ER  -